| Patents for Lester F. Nenninger |
Patents 16 -
30
of 91
      |
| Number | Date | Patentee | Title | Type |
| 1,832,694 | Nov. 17, 1931 | L.F. Nenninger, H. Ernst | Auxiliary Manual Means for Actuating Hydraulic Motors | hydraulic apparatus |
| 1,835,976 | Dec. 08, 1931 | H. Ernst, L.F. Nenninger | Machine Tool Having Hydraulic Feed | hydraulic apparatus |
| 1,835,977 | Dec. 08, 1931 | L.F. Nenninger, H. Ernst | Hydraulic System | hydraulic apparatus |
| 1,835,978 | Dec. 08, 1931 | L.F. Nenninger, H. Ernst | Multiple Closed Circuit Hydraulic ystem | hydraulic apparatus |
| 1,835,979 | Dec. 08, 1931 | L.F. Nenninger, H. Ernst | Three-Pump Hydraulic System | hydraulic apparatus |
| 1,838,028 | Dec. 22, 1931 | L.F. Nenninger, H. Ernst | Deferred Action Reversing Mechanism | hydraulic apparatus |
| 1,840,051 | Jan. 05, 1932 | L.F. Nenninger | Milling Machine | milling machines |
| 1,845,865 | Feb. 16, 1932 | L.F. Nenninger, S. Einstein | Machine Tool | grinding machines |
| 1,846,956 | Feb. 23, 1932 | F. Haas, L.F. Nenninger, S. Einstein | Grinding Machinery | grinding machines |
| 1,857,162 | May 10, 1932 | L.F. Nenninger | Milling Machinery | milling machines |
| 1,859,242 | May 17, 1932 | L.F. Nenninger | Transmission and Control Mechanism | milling machines |
| 1,871,504 | Aug. 16, 1932 | L.F. Nenninger, S. Einstein | Truing Device for the Wheels of Grinding Machines | grinding machines |
| 1,872,627 | Aug. 16, 1932 | L.F. Nenninger, H. Ernst | Milling Machine | milling machines |
| 1,874,583 | Aug. 30, 1932 | L.F. Nenninger | Grinding Machinery | grinding machines |
| 1,893,068 | Jan. 03, 1933 | L.F. Nenninger, H. Ernst | Control for Hydraulic Systems | hydraulic apparatus |
